Home / 685,521.41-1,028,271.11-186,885.41

Finding the Fourth Proportional to 685,521.41, 1,028,271.11 and 186,885.41

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Solution

The fourth proportional to 685,521.41, 1,028,271.11 and 186,885.41 is: 280,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,521.41 : 1,028,271.11 = 186,885.41 : x
  2. Step 2: Convert to fraction form
    685,521.41/1,028,271.11 = 186,885.41/x
  3. Step 3: Cross multiply
    685,521.41x = 1,028,271.11 × 186,885.41
  4. Step 4: Simplify right side
    685,521.41x = 192,168,861,907.72
  5. Step 5: Solve for x
    x = 192,168,861,907.72/685,521.41
  6. Step 6: Final answer
    x = 280,325.11

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.